Pyridine → (9S)-9-[4-(3,4-dimethylphenoxy)phenyl]-3,4,6,7,8,9-hexahydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

HRID 2035987Notes

Reaction equation

HRID 2035987 reaction equation
[CH3:1][C:2]1[CH:3]=[C:4](B(O)O)[CH:5]=[CH:6][C:7]=1[CH3:8].[O:12]=[S:13]1(=[O:30])[CH2:18][CH2:17][N:16]2[CH2:19][CH2:20][CH2:21][C@@H:22]([C:23]3[CH:28]=[CH:27][C:26]([OH:29])=[CH:25][CH:24]=3)[C:15]2=[N:14]1.N1C=CC=CC=1.C(=O)([O-])[O-].[Cs+].[Cs+]>CC#N.C(O[Cu]OC(=O)C)(=O)C>[CH3:1][C:2]1[CH:3]=[C:4]([CH:5]=[CH:6][C:7]=1[CH3:8])[O:29][C:26]1[CH:25]=[CH:24][C:23]([C@H:22]2[C:15]3=[N:14][S:13](=[O:30])(=[O:12])[CH2:18][CH2:17][N:16]3[CH2:19][CH2:20][CH2:21]2)=[CH:28][CH:27]=1

Participants

7

Reactant 4

HCID 1049PyridineHCID 10796Cesium carbonateHCID 27343483,4-Dimethylphenylboronic acidHCID 667484964-[(9S)-2,2-dioxido-3,4,6,7,8,9-hexahydropyrido[2,1-c][1,2,4]thiadiazin-9-yl]phenol

Product 1

HCID 66748914(9S)-9-[4-(3,4-dimethylphenoxy)phenyl]-3,4,6,7,8,9-hexahydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxideYield 5.8%

Reagents, catalysts & solvents 2

HCID 178476681HCID 178476681, compoundCatalystHCID 6342AcetonitrileSolvent

Procedure

A mixture of (3,4-dimethylphenyl)boronic acid (802 mg), 4-[(9S)-2,2-dioxido-3,4,6,7,8,9-hexahydropyrido[2,1-c][1,2,4]thiadiazin-9-yl]phenol (500 mg), pyridine (3.60 mL), cesium carbonate (581 mg), diacetoxycopper (648 mg) and powdered 4A MS (5.00 g) in MeCN (18 ml) was stirred at room temperature overnight. The mixture was added with NH silica gel, concentrated in vacuo, and purified by column chromatography (NH silica gel, eluted with MeOH in EtOAc) then recrystallized from EtOAc to give the title compound (40.0 mg) as a white solid.

Workup

  1. additionThe mixture was added with NH silica gel
  2. concentrationconcentrated in vacuo
  3. custompurified by column chromatography (NH silica gel, eluted with MeOH in EtOAc)
  4. customthen recrystallized from EtOAc

Sources & evidence

ORD record
ord-41b2d975d06540099a7038172e84e08d
Source dataset
uspto-grants-2013_11
Patent number
US08575154B2

Reaction notes

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